[  520.388649] bond0: (slave eth0): making interface the new active one
[  520.388742] bond0: (slave eth0): Enslaving as an active interface with an up link
[  524.553212] bond0: (slave eth0): Releasing backup interface
[  524.631333] bond0: (slave eth0): Enslaving as an active interface with an up link
[  528.784051] bond0: (slave eth0): Releasing backup interface
[  528.824114] bond0 (unregistering): Released all slaves